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BMW 640 Cabriolet (petrol) • 7 cars with Valuation

Market overview: Petrol BMW 640 Cabriolet (October-2026): There are currently 7 used petrol BMW 640 Cabriolet cars for sale. Prices range from £6,445 to £13,840, with a median price of £10,750. AutoUncle has identified 1 cars as being offered below market price. The typical selling time for a petrol BMW 640 Cabriolet is approximately 12 days, and 42.9% of the listings have recently been reduced in price (Source: AutoUncle market data, October-2026).

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Used BMW Z4 M Sport 184 HP (135 kW) 2015 Cabriolet

(2015) BMW Z4 M Sport 184 HP

Good price

You save £1,350

CV37 9NF Warwickshire, Warwickshire

159 g CO2/km comb. - 184 HP (135 kW) - 6.8 Mpg

Carwow

Used BMW Z4 Sport Line 158 HP (116 kW) 2014 White Cabriolet

(2014) BMW Z4 Sport Line 158 HP

Fair price

PE32 1DD Pott Row, Norfolk

159 g CO2/km comb. - 158 HP (116 kW) - 6.8 Mpg

Carwow

Used BMW Z4 M Sport 184 HP (135 kW) 2012 Black Cabriolet

(2012) BMW Z4 M Sport 184 HP

Fair price

Estimated price £8,955

PE4 6QZ Peterborough, Cambridgeshire

159 g CO2/km comb. - 184 HP (135 kW) - 6.8 Mpg

Carwow

Used BMW Z4 M Sport 245 HP (180 kW) 2014 White Cabriolet

(2014) BMW Z4 M Sport 245 HP

Fair price

Estimated price £12,832

G52 4UJ Hillington, Renfrewshire

159 g CO2/km comb. - 245 HP (180 kW) - 6.8 Mpg

Price checked by AutoUncle

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Used (2012) BMW 640 Cabriolet Comfort Edition 320 HP | Super price

6 Series 3.0 SE Convertible 2dr

2012
90,000 miles
Trim level: Comfort Edition
3.0L Petrol
Cabriolet
Automatic
320 HP (235 kW)
Details

Super price

£7,495

£8,495

Dealer

UB8 2JP Greater London, London

-6%

1 / 1

Used (2012) BMW 640 Cabriolet M Sport 320 HP | Fair price

6 Series 3.0 M Sport Convertible

2012
50,000 miles
Trim level: M Sport
3.0L Petrol
Cabriolet
Automatic
320 HP (235 kW)
Details

Fair price

£13,990

£14,890

Dealer

AL7 4SN Hertfordshire, Hertfordshire

1 / 1

Used (2011) BMW 640 Cabriolet Performance 320 HP | Fair price

6 Series 3.0 SE Convertible

2011
77,700 miles
Trim level: Performance
3.0L Petrol
Cabriolet
Automatic
320 HP (235 kW)
Details

Fair price

£10,750

£10,499

Dealer

CV6 5EZ West Midlands, West Midlands

1 / 1

Used (2012) BMW 640 Cabriolet M Sport 315 HP | Fair price

6 Series M Sport 2dr 315 Bhp

2012
67,000 miles
Trim level: M Sport
3.0L Petrol
Cabriolet
Automatic
315 HP (231 kW)
Details

Fair price

£13,490

Dealer

London, London

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Carwow

Used BMW Z4 M Sport 184 HP (135 kW) 2015 Cabriolet

(2015) BMW Z4 M Sport 184 HP

Good price

You save £1,350

CV37 9NF Warwickshire, Warwickshire

159 g CO2/km comb. - 184 HP (135 kW) - 6.8 Mpg

Carwow

Used BMW Z4 Sport Line 158 HP (116 kW) 2014 White Cabriolet

(2014) BMW Z4 Sport Line 158 HP

Fair price

PE32 1DD Pott Row, Norfolk

159 g CO2/km comb. - 158 HP (116 kW) - 6.8 Mpg

Carwow

Used BMW Z4 M Sport 184 HP (135 kW) 2012 Black Cabriolet

(2012) BMW Z4 M Sport 184 HP

Fair price

Estimated price £8,955

PE4 6QZ Peterborough, Cambridgeshire

159 g CO2/km comb. - 184 HP (135 kW) - 6.8 Mpg

Carwow

Used BMW Z4 M Sport 245 HP (180 kW) 2014 White Cabriolet

(2014) BMW Z4 M Sport 245 HP

Fair price

Estimated price £12,832

G52 4UJ Hillington, Renfrewshire

159 g CO2/km comb. - 245 HP (180 kW) - 6.8 Mpg

-8%

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Used (2012) BMW 640 Cabriolet M Sport 320 HP | Fair price

6 Series 3.0 M Sport Convertible

2012
75,673 miles
Trim level: M Sport
3.0L Petrol
Cabriolet
Automatic
320 HP (235 kW)
Details

Fair price

£10,995

£11,995

Exchange and Mart

Stirling, Stirling And Falkirk

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1 / 1

Used (2011) BMW 640 Cabriolet Comfort Edition 316 HP | Expensive

6 Series SE 2dr Auto

2011
137,037 miles
Trim level: Comfort Edition
3.0L Petrol
Cabriolet
Automatic
316 HP (232 kW)
Details

Expensive

£5,995

Dealer

London, London

1 / 1

Used (2011) BMW 640 Cabriolet Comfort Edition | Rare vehicle

6 Series SE 2dr Auto

2011
103,301 miles
Trim level: Comfort Edition
3.0L Petrol
Cabriolet
Automatic
Details

£7,750

Rare vehicle

Dealer

BS14 0XD Bristol City, Bristol

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Used Audi S5 Black Edition 333 HP (244 kW) 2016 Blue Coupe

(2016) Audi S5 Black Edition 333 HP

Fair price

Estimated price £12,083

OL9 6HT Greater Manchester, Manchester

184 g CO2/km comb. - 333 HP (244 kW) - 7.8 Mpg

Carwow

Used Mercedes E350 AMG line 299 HP (219 kW) 2019 Black Coupe

(2019) Mercedes E350 AMG line 299 HP

Fair price

You save £1,088

RM13 8RH Greater London, London

190 g CO2/km comb. - 299 HP (219 kW) - 7.8 Mpg

Carwow

Used Mercedes E350 AMG line 313 HP (230 kW) 2019 Black Coupe

(2019) Mercedes E350 AMG line 313 HP

Good price

You save £1,910

UB7 8HY Greater London, London

190 g CO2/km comb. - 313 HP (230 kW) - 7.8 Mpg

Carwow

Used Audi S5 S-Line 354 HP (260 kW) 2018 Coupe

(2018) Audi S5 S-Line 354 HP

Fair price

Estimated price £17,970

GL12 8BD Bagstone, Gloucestershire

174 g CO2/km comb. - 354 HP (260 kW) - 7.7 Mpg

Showing 1 - 7 of 7 results

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